All is in the subject. I have a partition with Netrunner in parallel with Maui. Security update are regularly received on Maui, I do not observed such events on Netrunner 17.10.
Am I missing a repository ?
SM

But the question, to which I also don't know the answer, is: since cannot activate Debian Testing and Netrunner is not based on Stable, which security repository should we use? For each Debian release there is a separate one.

If you want a stable Netrunner, install 17.06, switch the repos to Debian Stable and Stable security updates and upgrade the system. You will be on stable release then and will have a stable system, but will not have the continuous Plasma updates. It all comes with a price Debian as base doesn't provide such flexibility as Ubuntu. If you want a stable system with Plasma updates, go with KDE Neon.

Quote:If you are tracking testing or the next-stable code name, you should always have a corresponding deb http://security.debian.org <"testing" or codename>/updates main line in your /etc/apt/sources.list .

Considerations

Quote:Compared to stable and unstable, next-stable testing has the worst security update speed. Don't prefer testing if security is a concern.